AgentData MCP Server

Name: AgentData
Author: agentdata

Free company data for AI agents, as MCP tools. AgentData profiles companies from the public web: tech stacks, web signals (pricing page, free trial, API docs, careers), email addresses with their verification status, people with titles, and switch signals (who just dropped or adopted a tool).

Works with Claude, Claude Code, ChatGPT, Codex, Gemini, Cursor, Windsurf, VS Code, GitHub Copilot, Zed, Cline and any other MCP client.

Quick start

No key is needed to look up a company's public profile, search companies, browse technologies or read switch signals. Emails and people need a free API key (1,000 contact reveals a day, no card): sign up at agentdata.run/signup and copy the key from agentdata.run/settings.

Claude (claude.ai, Desktop, mobile)

Settings, Connectors, Add custom connector, then paste:

https://mcp.agentdata.run/mcp

No sign-in: the company, technology and signal tools work straight away.

Claude Code

bash

claude mcp add agentdata -- npx -y agentdata-mcp-server --api-key YOUR_API_KEY

Claude Desktop, Cursor, Windsurf, VS Code, Cline

Add to the client's MCP config (claude_desktop_config.json, .cursor/mcp.json, mcp.json):

json

{
  "mcpServers": {
    "agentdata": {
      "command": "npx",
      "args": ["-y", "agentdata-mcp-server", "--api-key", "YOUR_API_KEY"]
    }
  }
}

Leave out --api-key to run anonymously (company profiles, technologies and signals; no emails or people).

Hosted (no install)

https://mcp.agentdata.run/mcp

Streamable HTTP. Send Authorization: Bearer YOUR_API_KEY for emails and people; without a header it serves the anonymous tools. In Claude Code:

bash

claude mcp add agentdata --transport http https://mcp.agentdata.run/mcp --header "Authorization: Bearer YOUR_API_KEY"

Tools

Tool	What it returns	Cost	Key
`lookup_company`	One domain's record: company, tech stack (first and last seen), signals, email pattern. With a key, also email addresses and people	none without a key; with a key 1 reveal per domain per 30 days	no
`search_companies`	Companies by name or by sector, size (estimate), b2b/b2c, model, technology, country	none	no
`get_technologies`	The technology index, or companies using one technology	none	no
`get_signals`	Companies that added, removed or switched a tool; growth and hiring changes	none	no
`find_people`	People by title, seniority, department, company filters	1 reveal per company in the response	yes
`get_person`	One person by id, with email	1 reveal (free if the company was revealed in the last 30 days)	yes
`check_usage`	Plan and what is left today	none	no

Every response ends with a usage line (reveals, requests and companies left), so an agent can pace itself. A domain that has not been profiled yet is crawled on request and answers "retry in about two minutes" without charging. Without a key, find_people and get_person are not listed.

Limits

	Anonymous	Free key	Pro ($99 a year)
Contact reveals a day	none	1,000	10,000
Requests per 5 hours	300	5,000	25,000
Requests a second	2	5	20
Distinct companies a day	200	5,000	25,000

Nothing else is metered. Details at agentdata.run/pricing.

Example prompts

"Which SaaS companies use Intercom? Give me small ones with a pricing page."
"Look up linear.app: tech stack, and who runs engineering."
"Who dropped Zendesk in the last 30 days?"
"Find heads of sales at fintech companies that use HubSpot, with email addresses."
"How many contact reveals do I have left today?"

Run from source

bash

npm install
npm run build
node dist/index.js --api-key YOUR_API_KEY      # stdio
node dist/index.js --http --port 3001          # Streamable HTTP on POST /mcp, 127.0.0.1 only
node dist/index.js --help

AGENTDATA_API_KEY, PORT and HOST work as environment variables. npm run inspect opens the MCP Inspector.

The HTTP server binds to 127.0.0.1 by default and only answers local pages, so a key you start it with cannot be used by other sites or other machines. --host 0.0.0.0 makes it public; in that mode the startup key is ignored and every caller must send its own Authorization: Bearer key.